Core i5-10400F vs Ryzen 9 5900

CPU

GPU

Core i5-10400F

6 Cores12 Thrd65 WWMax: 4.3 GHz2020

Core family

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Ryzen 9 5900

12 Cores24 Thrd65 WWMax: 4.7 GHz2021

Ryzen family

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Core i5-10400F vs Ryzen 9 5900 Performance Spectrum

Core i5-10400F

6 / 12

13,029

0.0%

33,912

+160.3%

Ryzen Threadripper PRO 7945WX

Ryzen 9 9950X

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Core i5-10400F vs Ryzen 9 5900 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-10400F vs Ryzen 9 5900: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-10400F

2020

Why buy it

✅Costs $389 less on MSRP ($160 MSRP vs $549 MSRP).
✅Delivers 31.8% more PassMark for each dollar spent, at 81.4 vs 61.8 PassMark/$ ($160 MSRP vs $549 MSRP).
✅Includes a boxed cooler (Yes), unlike Ryzen 9 5900.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900 across 50 shared CPU benchmark tests.
❌Lower PassMark (13,029 vs 33,912).
❌Smaller total L3 cache (12 MB vs 64 MB).

Ryzen 9 5900

2021

Why buy it

✅Better for gaming: +45.3% higher average FPS across 50 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 61.8 vs 81.4 PassMark/$ ($549 MSRP vs $160 MSRP).
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Ryzen 9 5900 better than Core i5-10400F?

Yes. Ryzen 9 5900 is the better all-around CPU here. It gives you a 45.3% average FPS lead across 50 shared CPU game tests in our data, 160.3% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 5900 is the better pick. According to our tests, it delivers 45.3% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 9 5900 is the stronger fit. You are getting 160.3% better PassMark, backed by 12 cores and 24 threads. It also has the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 9 5900 is still the faster CPU overall, but Core i5-10400F is easier to justify if budget matters more than peak performance. Ryzen 9 5900 comes in 243.1% more expensive on MSRP at $549 MSRP versus $160 MSRP, and it still gives you a 45.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-10400F is also 31.8% better value on MSRP (81.4 vs 61.8 PassMark/$), which is why it can still make sense for tighter-budget builds on paper. That said, if you already own a compatible LGA1200 + DDR4 setup, Core i5-10400F can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

Which one is more future-proof for 2026 and beyond?

Ryzen 9 5900 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2020), 433.3% larger total L3 cache (64 MB vs 12 MB), and more multi-core headroom with 12 cores / 24 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-10400F vs Ryzen 9 5900 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

Ryzen 9 5900

The Ryzen 9 5900 is manufactured by AMD. It was released in 12 January 2021 (4 years ago). It is based on the Vermeer (2020−2025) architecture. It features 12 cores and 24 threads. Base frequency is 3 GHz, with boost up to 4.7 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 33,912 points. Launch price was $499.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Ryzen 9 5900 offers 12 cores / 24 threads — the Ryzen 9 5900 has 6 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.7 GHz on the Ryzen 9 5900 — a 8.9% clock advantage for the Ryzen 9 5900 (base: 2.9 GHz vs 3 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen 9 5900 uses Vermeer (2020−2025) (7 nm, 12 nm). In PassMark, the Core i5-10400F scores 13,029 against the Ryzen 9 5900's 33,912 — a 89% lead for the Ryzen 9 5900. L3 cache: 12 MB (total) on the Core i5-10400F vs 64 MB on the Ryzen 9 5900.

Feature	Core i5-10400F	Ryzen 9 5900
Cores / Threads	6 / 12	12 / 24+100%
Boost Clock	4.3 GHz	4.7 GHz+9%
Base Clock	2.9 GHz	3 GHz+3%
L3 Cache	12 MB (total)	64 MB+433%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Comet Lake (2020−2025)	Vermeer (2020−2025)
PassMark	13,029	33,912+160%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454	—
Geekbench 6 Multi	5,783	—

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Ryzen 9 5900 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR4-3200 on the Ryzen 9 5900 — the Ryzen 9 5900 supports 20% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-10400F) vs 24 (Ryzen 9 5900) — the Ryzen 9 5900 offers 8 more lanes for additional GPUs or NVMe drives.

Feature	Core i5-10400F	Ryzen 9 5900
Socket	LGA1200	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR4-3200+20%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

🔧

Advanced Features

Only the Ryzen 9 5900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-10400F) vs AMD-V (Ryzen 9 5900). Primary use case: Core i5-10400F targets Gaming, Ryzen 9 5900 targets OEM Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Ryzen 9 5900
Integrated GPU	No	No
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V
Target Use	Gaming	OEM Gaming

💰

Value Analysis

At launch, the Core i5-10400F was priced at $160, while the Ryzen 9 5900 came in at $549. On launch pricing ($160 vs $549), Core i5-10400F was $389 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 61.8 pts/$ for the Ryzen 9 5900 — making the Core i5-10400F the 27.5% better value option.

Feature	Core i5-10400F	Ryzen 9 5900
MSRP	$160-71%	$549
Performance per Dollar	81.4+32%	61.8
Release Date	2020	2021

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